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Durango West MD No 2

What EPA’s and Colorado’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
930 people
Connections
357
Water source
Surface water bought from another system
Based in
Durango, CO
County
La Plata
Owner
Local government
The ZIP code it serves

81301

The short answer

1 result is above the health goal. The worst: Lead, above the health goal. 2 health-based violations since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2016 to 2025.

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.5 ppm, for the period ending June 30, 2012. None since is on file, so it is not counted as a current finding.

Total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, nitrate, arsenic, chromium (total) and uranium: Colorado’s own results, samples taken from March 3, 2020 to Sept. 30, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

2.0ppb

90th percentile, 2023 to 2025

In the latest period, 9 in 10 homes sampled were at or below 2.0 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits4

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

56.4ppb

Highest yearly average, 2020 to 2026

2026 average: 21.7 ppb

Averaged by year, the highest was 56.4 ppb, in 2024, below EPA’s legal limit of 80 ppb. Its highest single sample was 125 ppb. In 2026, the latest year on file, its three samples averaged 21.7 ppb. EPA recorded no violation for total trihalomethanes (TTHM) at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 79.8 ppb, in 2017, and EPA recorded a violation in 2017.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

25.3ppb

Highest yearly average, 2020 to 2026

2026 average: 9.4 ppb

Averaged by year, the highest was 25.3 ppb, in 2021, below EPA’s legal limit of 60 ppb. Its highest single sample was 49.8 ppb. In 2026, the latest year on file, its three samples averaged 9.4 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 31.6 ppb, in 2016.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.26ppm

Highest yearly average, 2020

Averaged by year, the highest was 0.26 ppm, in 2020, below EPA’s legal limit of 4.0 ppm. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.5 ppm, in 2012.

What handles it

Nitrate

Comes from the source

Below EPA’s limits

0.032ppm

Highest sample; found in 2 of 6

2026, one sample: 0.032 ppm

The highest sample, in 2026, was 0.032 ppm, below EPA’s legal limit of 10 ppm. That was also the latest year on file, and its one sample was 0.032 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 5.7 ppm, in 2017.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Chromium (total)
  • Uranium

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best water filters for lead, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2017 to Sept. 30, 20170.087 MG/LResolved
Stage 1 Disinfectants and Disinfection Byproducts RuleTreatment was not run by a certified operator as required.EPA: Treatment Technique No Certif. OperatorJan. 15, 2016—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 9 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, nitrate, arsenic, chromium (total) and uranium results here are Colorado’s own from 2020 on, with EPA’s national file for 2012 to 2019. Durango West MD No 2’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Colorado’s results run from March 3, 2020 to Sept. 30, 2026.

Testing your own tap

Durango West MD No 2’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Colorado certifies.

The lab Colorado certifies closest to the area Durango West MD No 2 serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • La Plata County Water Quality Laboratory

    Durango, CO · about 23 miles

    Certified for bacteria

All 54 certified labs for Colorado

Sources

PWSID CO0134190. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in La Plata County

All Colorado utilities

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